waagent 0 -> 1
attrpath: waagent
Checking auto update branch...
[version] 
[version] skipping because derivation has updateScript
[rustCrateVersion] 
[rustCrateVersion] No cargoSha256 or cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorSha256 or vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] Success
[updateScript] this derivation will be built:
  /nix/store/kc0q5xcnvg7qmkgjhw95lifsxq9k99lm-packages.json.drv
building '/nix/store/kc0q5xcnvg7qmkgjhw95lifsxq9k99lm-packages.json.drv'...

Going to be running update for following packages:
 - waagent-2.8.0.11

Press Enter key to continue...
Running update for:
 - waagent-2.8.0.11: UPDATING ...
 - waagent-2.8.0.11: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/applications/networking/cluster/waagent/default.nix b/pkgs/applications/networking/cluster/waagent/default.nix
index 45fc40384763..5c980133ff6c 100644
--- a/pkgs/applications/networking/cluster/waagent/default.nix
+++ b/pkgs/applications/networking/cluster/waagent/default.nix
@@ -14,12 +14,12 @@ let
 in
 python.pkgs.buildPythonApplication rec {
   pname = "waagent";
-  version = "2.8.0.11";
+  version = "2.9.1.1";
   src = fetchFromGitHub {
     owner = "Azure";
     repo = "WALinuxAgent";
-    rev = "04ded9f0b708cfaf4f9b68eead1aef4cc4f32eeb";
-    sha256 = "0fvjanvsz1zyzhbjr2alq5fnld43mdd776r2qid5jy5glzv0xbhf";
+    rev = "refs/tags/v${version}";
+    sha256 = "sha256-lnCDGUhAPNP8RNfDi+oUTEJ4x3ln6COqTrgk9rZWWEM=";
   };
   patches = [
     # Suppress the following error when waagent tries to configure sshd:

An auto update branch exists with message `waagent: 2.8.0.11 -> 2.9.1.1`. New version is 2.9.1.1.
An auto update branch exists with an equal or greater version